Question

State the necessary condition for following statement to be true
' 3$x$ + 5 > 20 '

• A. x = 3
• B. x>3
• C. x = 5
• D. x>5

Answer 1

The correct option is D x>5

3$x$ + 5 > 20
3$x$ > 20 - 5
3$x$ > 15
$x$ > $\frac{15}{3}$
$x$ >5